jquery - Javascript - giving an li an active state -


i'm trying use javascript make sort of slideshow. want each li in slideshow navigation given active state upon click , when slideshow cycles through next li item.

i'm relatively new javascript have basic understanding of it. managed achieve part of wanted i.e. divs cycle through , li navigation given active state when it's clicked, cannot work out how give active css class when next item in list active cycle javascript.

i have attached html , javascript below.

html

<div id="tabs">   <div id="tab-1">    <h2>fantastic service, care.</h2>    <div class="reviews">     <div class="read"><a href="/reviews">read reviews</a></div><!-- .read -->     </div><!-- .reviews --> </div><!-- #tab-1 -->  <div id="tab-2">   lorem blah blah </div><!-- #tab-2 -->  <div id="tab-3">   lorem ipsum </div><!-- #tab-3 -->  <div id="tab-4">   lorem blah blah </div><!-- #tab-4 -->   <ul class="nav">   <li class="tab"><a href="#tab-1">ratings & reviews</a></li>   <li class="tab"><a href="#tab-2">how works</a></li>   <li class="tab"><a href="#tab-3">what do</a></li>   <li class="tab"><a href="#tab-4">fourth tab</a></li>  </ul><!-- .nav --> </div><!-- #tabs -->

javascript 

//<![cdata[  $(window).load(function(){    $(document).ready(function(){      $('#tabs div').hide();      $('#tabs div:first').show();      $('#tabs ul li:first').addclass('active');       $('#tabs ul li a').click(function(){      $('#tabs ul li').removeclass('active');      $(this).parent().addclass('active');      var currenttab = $(this).attr('href');      $('#tabs div').hide();      $(currenttab).fadein(400).show();      return false;    }); });  var divs = $('div[id^="tab-"]').hide(),    = 0;    (function cycle() {     divs.eq(i).show(0)     .delay(5000)     .hide(0, cycle);    = ++i % divs.length;    })(); });//]]>

thanks in advance.


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